"Elsinore, also elsanor, elsinor, elson. A cap, often made of leather, with ear flaps....
1904 Murphy (ed) 52 "The Low-backed Car": My cap was the Elson—my coat plainly made.
1913 Christmas Post 12 The fisherman wanted a macintosh instead of his old oil skins, and a cloth cap instead of the old elsinore.
1933 Greenleaf 238 The elsinor cap was the common headgear of the Newfoundland boy. It is shaped like a teamster's cap, with a string around the bottom to protect the neck and ears." —Dictionary of Newfoundland English, 163